Alpecin Caffeine Shampoo C1 Black Edition, Men's Natural Hair Growth Shampoo for Thinning Hair with Niacin, Menthol, and Castor Oil, 8.45 fl. oz. - Walmart.com
Alpecin Shampoo Review - Do We Recommend It??? - YouTube
Alpecin Caffeine Shampoo C1 - Cleanses the Scalp to Promote Natural Hair Growth - Walmart.com